The Bible metaphorically tells us that the earth (universe, and other worlds) were spoken into existence. "God Said" and then, so it was.
Whatever our creator is, it generates a frequency. Making sound waves visible is called cymatics. When you blow across the waters it makes ripples; it's logical to see that sound, which is itself invisible, can produce images. Some sounds result in a pattern of formal balance; other sounds can create whirling discord.